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Established 2004

Ruddlesden geotechnical

Ruddlesden geotechnical provides ground investigation, geotechnical consultancy and contamination assessment services.

Based in Exeter, but covering the whole of the UK, albeit primarily concentrated in the South West, Ruddlesden geotechnical was formed in 2004.

Ruddlesden geotechnical works on behalf of a wide client base, including local, regional and national housing developers, housing associations, commercial developers, building contractors, structural and civil engineers, architects, building consultants, quantity surveyors, local authorities and private individuals.

Development projects range from single dwellings and extensions to large housing estates, multi-storey flats, offices, industrial units, roads, slopes, schools, hospitals and basements.

The services and projects listed on this web-site provide an indication of those undertaken by Ruddlesden geotechnical, but others are carried out. If your requirement is not readily identifiable on this web-site, please contact us as we may still be able to help you.

  • AGS
  • Constructionline
  • CSCS
  • SMAS
  • ECFC trust

Latest news

Recent projects

  • Latest news

    18 Jun 2026

    School Reunion and Connections

    Last weekend, Simon Ruddlesden went back to school, to celebrate the retirement of an exceptional geology teacher, who, together with colleagues, has built a department that consistently ranks among the best in the country.  The results speak for themselves: over 50% of the year group now take GCSE Geology; 85% of A-Level students achieved A or A* last year.There are incredible numbers and inspiring teaching. However, despite decades of producing highly capable geology students, very few of them have ended up in the ground investigation / geotechnical / geo-environmental industry. A missed opportunity, perhaps?As discussed at the recent AGS annual conference (and elsewhere), we are hearing that there are fewer well-trained graduates entering our industry, and we are seeing fewer universities offering geoscience degrees and fewer schools offering geology at GCSE and A-Level. However, perhaps the biggest challenge of all is awareness. Ask a school-age student what a career in geology looks like, and you’ll likely hear “mining…oil and gas…quarrying”. Our industry is often not even on the radar. If students don’t know we exist, why would they ever choose this path? Why would they pick geology at university if they don’t realise it could unlock a rewarding career in our field?So, Simon will be going back to school again, not to study, but to share what we do, why it matters, and how rewarding it can be. The ground investigation/ geotechnical/ geo-environmental industry won’t be for everyone, but there could be an untapped pool of future engineering geologists and geo-environmental engineers out there; we just need to reach them earlier. Let’s make sure the next generation know we exist!If you know of a school that would like to hear what Simon has to say about working in the industry, please get in touch. 

    School Reunion and Connections
    School Reunion and Connections

  • Recent projects

    Foundation Inspections Reduce Construction Costs, East Devon

    Ruddlesden geotechnical are currently undertaking foundation inspections on a plot-by-plot basis for a regional housing developer at a new residential development site in East Devon. The consulting engineer had specified that all foundations be reinforced to accommodate local changes in the ground conditions, identified in the original geotechnical investigation. However, following a reduction in site levels, the majority of footings were to be founded in the relatively more homogenous underlying Dawlish Sandstone Formation and, where not encountered, it was found to be more cost effective to deepen foundations into the Dawlish Sandstone Formation, rather than reinforcing shallower footings, founded in the overlying superficial deposits. Ruddlesden geotechnical are responsible for providing an account of the ground conditions encountered in each foundation excavation and specifying whether further excavation (or reinforcement) is required for each plot.

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  • Recent projects

    Combined Geotechnical Consultancy Services Provided for Residential Development, Devon

    Ruddlesden geotechnical has provided a combination of several geotechnical consultancy services for a large and on-going residential development site in Torbay. The geology of clay underlain limestone has resulted in a number of geotechnical hazards, primarily associated with solution features in the limestone, which have had implications on foundations, drainage and excavations. Using information obtained from a combination of geophysics, trial pits, dynamic sampling/ windowless sample boreholes and rotary boreholes, foundation recommendations have locally included reinforcement and widening to reduce ground bearing pressures. Deep bore soakaways have been recommended to avoid the potential wash-out of near surface soils, which might be caused by conventional soakaways in these ground conditions. In addition, terracing of a slope in part of the site generated significant quantities of soil. Rather than disposing of this at landfill, a material re-use suitability assessment was undertaken, which allowed an earthworks specification to be produced, which itself enabled ground levels to be raised on another area of the site, reducing the need to mechanically break-out near-surface bedrock for excavations.

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